Dissertation > Industrial Technology > Chemical Industry > Pharmaceutical chemical industry > The Chinese herbal medicine preparations of the production

The alfalfa quality control and total extraction process

Author MiWenZhen
Tutor ZhangGuoGang
School Shenyang Pharmaceutical University
Course Natural Medicinal Chemistry
Keywords Alfalfa Quality Control Of examination Mai Situo alcohol Total flavonoids Extraction Process
Type Master's thesis
Year 2009
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Alfalfa species of legume alfalfa alfalfa (Medicago sativa L.) dry grass. Perennial herb , also known as purple clover , animal husbandry, alfalfa , scenery grass is one of the world cultivation is the most widely used and most important , the most resource-rich legume forage cultivated in most parts of China . About the the herbs alfalfa quality standards , currently , only alfalfa seed People's Republic of ministerial drug standards were contained , and the other parts of the quality control little research . The pharmacognosy start a more systematic study of the aerial parts of alfalfa traits , microscopy , physics and chemistry , TLC and other identification test Mai Situo alcohol content determination and extraction process of total flavonoids . The main contents are as follows : 1 . Control the quality of traditional Chinese medicine , medicinal research progress of alfalfa and total flavonoids extraction process were reviewed . System alfalfa aerial parts of crude drug identification characteristics , including the original plant morphology , medicinal properties , microstructure , physical, chemical and TLC identification . Established alfalfa aerial parts of different origin Kao Mai Situo alcohol content measurement method to provide a scientific basis for the establishment of its quality standards . 4 of the extraction process of total flavonoids of alfalfa . Extracted two times with 50% ethanol , each time 2h, the filtrates were combined , and concentrated by suction , the precipitate was adjusted to pH of the filtrate was added concentrated HC1 to 3, placed 12h, filtered and the precipitate dried ie , the content of up to about 25% .

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